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Finding the Fourth Proportional to 34,981.60, 52,467.60 and 11,605.60

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Solution

The fourth proportional to 34,981.60, 52,467.60 and 11,605.60 is: 17,406.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,981.60 : 52,467.60 = 11,605.60 : x
  2. Step 2: Convert to fraction form
    34,981.60/52,467.60 = 11,605.60/x
  3. Step 3: Cross multiply
    34,981.60x = 52,467.60 × 11,605.60
  4. Step 4: Simplify right side
    34,981.60x = 608,917,978.56
  5. Step 5: Solve for x
    x = 608,917,978.56/34,981.60
  6. Step 6: Final answer
    x = 17,406.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.